What is the difference between polymer lithium battery and lithium manganate battery

Li-polymer batteries (Li-polymer) appear on the basis of lithium batteries with polymer electrolytes instead of traditional liquid organic electrolytes. This polymer electrolyte can be used as an ion-conducting medium and as an isolation membrane. In addition, the reactivity with metallic lithium is extremely low, so it effectively guards against the easy burning and easy leakage of lithium batteries. And because the lithium ion polymer battery absorbs the liquid organic electrolyte on a polymer matrix, it is called a colloidal electrolyte. This electrolyte is neither a free electrolyte nor a solid electrolyte, which makes the lithium-lithium polymer battery not only The excellent performance of liquid lithium batteries can also be made into ultra-thin products of any shape and size, which makes it widely applicable and promising for development. In addition, it is safer than lithium batteries. If it generates heat during use, it will only swell or burn without exploding. Lithium iron phosphate battery refers to a lithium battery that uses lithium iron phosphate as a positive electrode material. The cycle life of long-life lead-acid batteries is about 300 times, and the highest is 500 times for lithium iron phosphate batteries, while lithium iron phosphate power lithium ion batteries have a cycle life of more than 2000 times. Standard charging (5 hours rate) can reach 2000 times. Lead-acid batteries of the same quality are new for half a year, old for half a year, and for maintenance and maintenance for half a year, at most 1 to 1.5 years, while lithium iron phosphate batteries will be used for 7 to 8 years under the same conditions. Comprehensive consideration, the performance-price ratio will be more than 4 times that of lead-acid batteries. High-current fast discharge, high-current 2C fast charge and discharge, under the special charger, 1.5C charging can make the battery overflow within 40 minutes, the starting current can reach 2C, and lead-acid batteries currently have no such performance. The high temperature resistance has been improved, and the electric heating peak of lithium iron phosphate can reach 350℃500℃, while the lithium manganate and lithium cobaltate are only around 200℃. The working temperature range is wide (-20C--+75C), and it has high temperature resistance. The electric heating peak of lithium iron phosphate can reach 350℃500℃, while the lithium manganate and lithium cobaltate are only around 200℃. Large capacity has a larger capacity than general batteries (lead-acid, etc.). 5AH50AN (single) non-memory effect rechargeable batteries work under conditions that are often overflowing, and the capacity will quickly fall below the rated capacity value. This phenomenon is called the memory effect. Like nickel-metal hydride and nickel-cadmium batteries, there is memory, but lithium iron phosphate batteries do not have this phenomenon. No matter what state the battery is in, it can be charged and used at any time without having to discharge it before charging. Small in size and light in weight, the volume of a lithium iron phosphate battery with the same specification and capacity is 2/3 of the volume of a lead-acid battery and its weight is 1/3 of that of a lead-acid battery. Relatively improved environmental protection The battery has improved environmental protection compared to lead-acid batteries and polymer lithium batteries. But it also pollutes the environment. Lead-acid batteries can cause secondary pollution to the environment, while lithium iron phosphate materials have relatively low pollution. Therefore, the battery has been included in the 863 National High-tech Development Plan during the Tenth Five-Year Plan, and has become a key project supported and encouraged by the state. With my country’s accession to the WTO, my country’s export of electric bicycles will increase rapidly. Electric bicycles currently entering Europe and the United States are required to be equipped with pollution-free batteries. Lithium iron phosphate batteries also have their disadvantages: for example, the tap density of lithium iron phosphate cathode materials is relatively high. Small, equal-capacity lithium iron phosphate batteries are larger than lithium cobalt oxide and other lithium batteries, so they have no advantages in miniature batteries. Disclaimer: Some pictures and content of the articles published on this site are from the Internet, if there is any infringement, please contact to delete. Previous: Analysis of the use of lithium battery protection board